diff options
| author | Baolin Wang | 2022-10-24 16:34:21 +0800 |
|---|---|---|
| committer | Andrew Morton | 2022-10-28 13:37:22 -0700 |
| commit | 03e5f82ea632af329e32ec03d952b2d99497eeaa (patch) | |
| tree | 962e0a0e67331bb2109565ee8ed5b35a77234cf9 /fs/exfat/namei.c | |
| parent | 67eae54bc227b30dedcce9db68b063ba1adb7838 (diff) | |
mm: migrate: fix return value if all subpages of THPs are migrated successfully
During THP migration, if THPs are not migrated but they are split and all
subpages are migrated successfully, migrate_pages() will still return the
number of THP pages that were not migrated. This will confuse the callers
of migrate_pages(). For example, the longterm pinning will failed though
all pages are migrated successfully.
Thus we should return 0 to indicate that all pages are migrated in this
case
Link: https://lkml.kernel.org/r/de386aa864be9158d2f3b344091419ea7c38b2f7.1666599848.git.baolin.wang@linux.alibaba.com
Fixes: b5bade978e9b ("mm: migrate: fix the return value of migrate_pages()")
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Alistair Popple <apopple@nvidia.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs/exfat/namei.c')
0 files changed, 0 insertions, 0 deletions